Detachable keyhole seal for padlocks



T. W. BENSON DB'TACHABLE KEYHOLE SEAL FOR PADLOCKS July 3, 1923.

Filed May 13 1921 Patented July 3, 1923.

UNITED STATES PATENT o FicE.

THOMAS W. BENSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MILLER LOCK COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYL- VANIA.

Application filed May 13,

To all whom it may concern Be it known that I, THOMAS W. BENSON, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Detachable Key hole Seals for Padlocks, of which the following is a specification.

The object of this invention is to provide a sealing plate, which can be attached to a padlock by means of the shackle in order to prevent tampering with the combinationof the look through the keyhole opening.

This object I attain in the following man ner, reference being had to the accompanying drawings, in which:

Fig. l is a face view of a padlock, showing my improved sealing plate in position;

Fig. 2 is an edge View of the lock, partly broken away;

Fig. 3 is a perspective view of the sealing plate;

gig. 4 is a rear View of the sealing plate; an

Fig. 5 is an edge view of the sealing plate.

1 is a padlock having a key post 3, in the present instance, which projects in the key opening 4. 2 is the shackle pivoted to the casing of the lock in the ordinary manner and arranged to be secured in the locked position by the bolt located inside the casing. This bolt is controlled by the usual tumblers, or other devices, actuated by a key inserted in the key opening 4. In some instances, the key post may be dispensed with. 5 is my improved sealing plate, which is preferably made of sheet metal bent at the upper end, as at 6, and perforated at '7 for the passage of the free end of the shackle 2. At the other end of the plate, in the present instance, are two wings 8, which are shaped as shown in Figs. 3 and 5. These wings have projecting portions 10, which extend under the front plate of the look, as shown in Fig. 2, andare recessed at 9 to fit over a key post 3, when DETACI-IAIBLE KEYHOLE SEAL FOR PADLOCKS.

1921. Serial No. 469,232.

a key post is used. This sealing plate is placed in position over the key opening 4 rated portion through Which one leg of the shackle is passed to hold the plate in position to prevent the insertion of a key in the keyhole. 1

2. A sealing plate for padlocks having a portion arranged to enter'the keyhole of the padlock and to engage the casing, and having a perforated portion for the passage of the shackle of the look when moved to its closed position so as to fasten the sealing plate to thelock.

3. A sealing plate for padlocks made of sheet-metal and having a portion provided with undercut wings adapted to extend into the keyhole of the padlock and recessed to fit over the key post and bent at the opposite end, the bent portion being perforated for the passageof the shackle when moved to the closed position. 7

4. A sealing plate for use in connection with padlocks, said sealing plate having a portion preventingaccess to the keyhole of the lock and having a perforated portion extending over theshackle'opening so that one leg of the shackle will extend through the opening in the plate when in the locked position, the shackle holding the plate in position, I

THOS. BENSON. 

